'picture-filled' originates from Modern English as a compound of 'picture' and 'filled.' 'picture' ultimately comes from Latin 'pictura' via Old French 'pictura,' where the root 'pict-' (from Latin 'pingere') meant 'to paint.' 'filled' comes from Old English 'fyllan,' meaning 'to fill.'

'picture' entered English via Old French 'pictura' and Middle English 'picture'; 'filled' developed from Old English 'fyllan' to Middle English 'fillen.' The compound 'picture-filled' developed in Modern English as a condensed form of the phrase 'filled with pictures.'

Initially the elements referred separately to 'a painted/visual representation' and 'to make full'; over time they combined into the compound adjective meaning 'containing many pictures.'